Horrifying images show polar bears with painful ULCERS on their feet in the Arctic - and scientists say climate change is to blame

More from Science & Technology

• Who let the dogs out? Pack of canines spotted climbing giant Egyptian pyramid

• The swarm of UFOs caught on video near US Air Force base by dozens of stunned onlookers

• Verizon confirms 'highly sophisticated' spies are targeting cellular providers to gather intelligence

• Apple offers $1 million bounty to anyone who can hack its new AI system

• AI's shocking views of how Europeans see Americans based on their state

• Food safety experts reveal fast food red flags amid McDonald's E. coli outbreak

• You are being secretly tracked by your iPhone with three settings - but here's how to turn them off

• Hurricane watchers issue 'advanced risk' warning for storm Patty that could hit the US

• Walmart's deadly workplace laid bare amid walk-in oven death: Staff poisoned, amputated and crushed by forklifts

• 100m Americans' data breached in biggest US healthcare hacks ever

• Scientists SOLVE the mystery of the 'Holy Grail' cup discovered in a secret tomb in the ancient city of Petra - but they still have no idea about the identities of the 12 people buried there

• NASA astronaut reveals what happens when you squirt ketchup in low-gravity - as fans call his demonstration 'awesome and gross'

• McDonald's E coli recall spreads to Burger King, KFC, Pizza Hut, and Taco Bell as national chains are urged to pull key ingredient NOW

• First-of-its-kind wearable tracker is worn on the PENIS to monitor health - it could flag up a fatal condition

• Secretive $120 million weapon built for US Space Force that JAMS Russian and Chinese satellites is finally set for delivery as flaws are fixed following a two-year delay

• Would you put a camera in your TOILET? Bizarre AI device attaches to the bowl and analyses the shape, size and structure of your poop for signs of disease

• Go with your gut: Making everyday decisions on instinct is a 'surefire way to improve mood', experts say

• I'm a diagnosed sociopath - the twisted things I enjoy that would disgust others

• Walmart fined for illegally dumping toxic waste in California - amid oven death scandal

• The 1990s car gadgets children have never heard of - so, how many do YOU remember?